\renewcommand{\mod}[1]{\lvert #1 \rvert}
\newcommand{\Mod}[1]{\lVert #1 \rVert}
\newcommand{\ct}{c\mspace{-.5mu}t}
%\newcommand{\ct}{ct}
\newcommand{\ET}{\mathbf{ET}}
\newcommand{\Uz}{z}
\newcommand{\fz}{\zeta}
\newcommand{\et}{\mathrm{E}\mspace{-1mu}\mathrm{t}}
%\newcommand{\et}{Et}
\newcommand{\asin}{\mbox{asin}}
\newcommand{\gapdh}{\tiny{\mbox{GAPDH}}}
\newcommand{\median}{\mbox{median}}
\newcommand{\MAD}{\mbox{MAD}}
\newcommand{\WSS}{\overline{\mathrm{WSS}}}
\newcommand{\SSn}{\overline{\mathrm{SS}}}
\newcommand{\btheta}{\theta}